대한금속재료학회지 (Korean Journal of Metals and Materials)

  • 제49권1호
  • /
  • Pages.79-84
  • /
  • 2011
  • /
  • 1738-8228(pISSN)
  • /
  • 2288-8241(eISSN)
대한금속재료학회 (The Korean Institute of Metals and Materials)
권호 표지
DOI QR코드

DOI QR Code

이중벽 탄소나노튜브의 정제와 투과도에 따른 전계방출 특성 평가

Field Emission Property of Double-walled Carbon Nanotubes Related to Purification and Transmittance

  • 안기태 (서울시립대학교 나노과학기술학과) ;
  • 장현철 (서울시립대학교 나노과학기술학과) ;
  • 류승철 (서울시립대학교 나노공학과) ;
  • 이한성 (세종대학교 나노신소재공학부) ;
  • 이내성 (세종대학교 나노신소재공학부) ;
  • 한문섭 (서울시립대학교 물리학과) ;
  • 박윤선 (명지대학교 산업경영공학과) ;
  • 홍완식 (서울시립대학교 나노과학기술학과) ;
  • 박경완 (서울시립대학교 나노과학기술학과) ;
  • 석중현 (서울시립대학교 나노과학기술학과)
  • Ahn, KiTae (Department of Nano Science & Technology, University of Seoul) ;
  • Jang, HyunChul (Department of Nano Science & Technology, University of Seoul) ;
  • Lyu, SeungChul (Department of Nanotechnology, University of Seoul) ;
  • Lee, Hansung (Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University) ;
  • Lee, Naesung (Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University) ;
  • Han, Moonsup (Department of Physics, University of Seoul) ;
  • Park, Yunsun (Department of Industrial and management Engineering, Myongi University) ;
  • Hong, Wanshick (Department of Nano Science & Technology, University of Seoul) ;
  • Park, Kyoungwan (Department of Nano Science & Technology, University of Seoul) ;
  • Sok, Junghyun (Department of Nano Science & Technology, University of Seoul)
  • 투고 : 2010.10.08
  • 발행 : 2011.01.25
⟨ 이전 논문 다음 논문 ⟩

초록

Double-walled carbon nanotubes (DWCNTs) with high purity were produced by the catalytic decomposition of tetrahydrofuran (THF) using a Fe-Mo/MgO catalyst at $800^{\circ}C$. The as-synthesized DWCNTs typically have catalytic impurities and amorphous carbon, which were removed by a two-step purification process consisting of acid treatment and oxidation. In the acid treatment, metallic catalysts were removed in HCl at room temperature for 5 hr with magnetic stirring. Subsequently, the oxidation, using air at $380^{\circ}C$ for 5 hr in the a vertical-type furnace, was used to remove the amorphous carbon particles. The DWCNT suspension was prepared by dispersing the purified DWCNTs in the aqueous sodium dodecyl sulfate solution with horn-type sonication. This was then air-sprayed on ITO glass to fabricate DWCNT field emitters. The field emission properties of DWCNT films related to transmittance were studied. This study provides the possibility of the application of large-area transparent CNT field emission cathodes.

키워드

참고문헌

  1. H. Dai, H. Hanfner, A. G. Rinzer, D. T. Colbert, and R. E. Smalley, Nature 384, 147 (1996). https://doi.org/10.1038/384147a0
  2. E. W. Wang, P. E. Sheehan, and C. M. Kieber, Science 277, 1971 (1997). https://doi.org/10.1126/science.277.5334.1971
  3. H. Murakami, M. Hirakawa, and H. Yamakawa, Appl. Phys. Lett. 76, 1776 (2000). https://doi.org/10.1063/1.126164
  4. W. B. Choi, D. S. Chang, and Y. H. Lee, Appl. Phys. Lett. 75, 3129 (1999). https://doi.org/10.1063/1.125253
  5. J. M. Bonard, J. P. Salvetat, T. Stoeckli, W. A. de Heer, L. Forro, and A. Chatelain, Appl. Phys. Lett. 73, 918 (1998). https://doi.org/10.1063/1.122037
  6. Q. H. Wang, A. A. Setlur, J. M. Lauerhaas, J. Y. Dai, E. W. Seelig, and R. P. H. Chang, Appl. Phys. Lett. 72, 2912 (1998). https://doi.org/10.1063/1.121493
  7. J. M. Kim, W. B. Choi, N. S. Lee, and J. E. Jung, Diamond Relat. Mater. 9, 1184 (2000). https://doi.org/10.1016/S0925-9635(99)00266-6
  8. C. J. Yang, J. I. Park, and Y. R. Cho, Adv. Eng. Mater. 9, 88 (2007). https://doi.org/10.1002/adem.200600003
  9. M. R. Smith Jr, S. W. Hedges, R. LaCount, D. Kern, N. Shah, G. P. Huffman, and B. Bockrath, Carbon 41, 1221 (2003). https://doi.org/10.1016/S0008-6223(03)00054-X
  10. H. Kajiura, S. Tsutsui, H. Huang, and Y. Murakami, Chemical Physics Letters 364, 586 (2002). https://doi.org/10.1016/S0009-2614(02)01407-0
  11. Alexander A. Kuznetzov, Sergey B. Lee, Mei Zhang, Ray H. Baughman, and Anvar A. Zakhidov, Carbon 48, 1, 41 (2010). https://doi.org/10.1016/j.carbon.2009.08.009
  12. E. S. Jang, J. C. Goak, H. S. Lee, S. H. Lee, J. H. Han, C. S. Lee, J. H. Sok, Y. H. Seo, K. S. Park, and N. S. Lee, Applied Surface Science 256, 22, 1, 6838 (2010). https://doi.org/10.1016/j.apsusc.2010.04.098
  13. O. H. Lee, J. H. Jung, S. K. Doo, S. S. Kim, T. H. Noh, K. J. Kim, and Y. S. Lim, Met. Mater. Int. 16, 663 (2010). https://doi.org/10.1007/s12540-010-0822-0
  14. R. H. Fowler and L. Nordheim, Proc. R. Soc. Lond. Ser. A 119, 173 (1928). https://doi.org/10.1098/rspa.1928.0091
  15. C. J. Edgcombe and N. de Jonge, J. Phys. D: Appl. Phys. 40, 4123 (2007). https://doi.org/10.1088/0022-3727/40/14/005